Ratings: Winning Start for Game Night, Rookie Blue Dips, Big Brother Rises -- Plus: Sharknado!

Jane Lynch Hollywood Game NightNBC’s Hollywood Game Night claimed a quiet victory in its debut Thursday night.

The Jane Lynch-hosted series placed first at 10 pm with 4 million viewers and a 1.3 demo rating, matching last week’s Macy’s fireworks special and giving the Peacock its best 18-49 rating in the hour since April.

Elsewhere, ABC’s Rookie Blue held steady in audience (5.2 million) but dipped 17 percent in the demo (1.0 vs. 1.2) compared to its last original episode two weeks ago, while Motive (4.6 million, 0.8 rating) notched a series low in both measures.

CBS’ Big Brother, meanwhile, surged 18 percent from its last live episode to earn the night’s biggest demo rating, tying Fox’s Hell’s Kitchen (2.0).

UPDATE: And last but not least (OK, maybe least), how did Syfy’s Sharknado do? While it exploded Twitter and such, the TV-movie drew 1.4 million total viewers, with 566K landing in the 18-49 sweet spot — up 29 percent from the cabler’s 2013 average for an original movie. Sharknado also scored the youngest median age (46.8) for a Syfy pic since Zombie Apocalypse (Oct. 2011). Vote for the sequel title here!

Syfy will re-air Sharknado next Thursday, July 18, at 7/6c.